|Rank|Player|From|To|Transfer fee (€ million)|Year|
|---|---|---|---|---|---|
|1|Miralem Sulejmani|Heerenveen|Ajax|16.25|2008|
|2|Strootman & Mertens|Utrecht|PSV|13|2011|
|3|Mateja Kežman|Partizan|PSV|11.3|2000|
|4|Klaas-Jan Huntelaar|Heerenveen|Ajax|9|2006|
|5|Nikos Machlas|Vitesse|Ajax|8.6|1999|
|6|Zlatan Ibrahimović|Malmö FF|Ajax|8.4|2001|
|7|Jan Vennegoor of Hesselink|Twente|PSV|8.2|2001|
|8|Luis Suárez|Groningen|Ajax|7.5|2007|
|9|Darío Cvitanich|Banfield|Ajax|7.5|2008|
|10|Ferdi Vierklau|Tenerife|Ajax|7.3|1998|
|11|Adam Maher|AZ|PSV|6.5|2013|

Question: how many players had a transfer fee of at least 9 million euros?
Answer: 4